Machine for attaching two-section heels



March 17, 1942. w. R. GOODWIN 2,276,299

MACHINE FOR ATTACHING TWO-SECTION HEELS Filed May 20, 1940 Patented Mar. 17, 1942 MACHINE FOR ATTACHING TWO-SECTION HEELS Willis R. Goodwin, Auburn, Maine, assignor to United Shoe Machinery Corporation, Borough of Flemington, N. J., a corporation of New Jersey Application May 20, 1940, Serial No. 336,117

15 Claims.

This invention relates to machines by which heels are attached to shoes, it having particularly to do with the nailing of two-section shoe-heels.

High heels are often attached to shoes by two operations, a base-section being first nailed upon the heel-seat of a shoe, and then a second or tread-section being nailed to the thus-attached section. This second operation is effected by outside nailing, the fastenings being driven through the tread-surface of the second section into the attached section. The heavy clamping pressure, which is applied to the work, this being greatest at the inner or breast-portion, and the wedge-shape of the sections, diverging from front to back, exerts a displacing force rearwardly. The attaching nails entering the treadsection tend to hold this against rearward movement, but the band-clamp by which the shoe is located is not sufficiently stable to resist displacement of the attached base-section, and this may shift over the tread-section and thus open between the lifts cracks, which are difiicult or impossible to conceal in the finishing operations. It is an object of my invention to guard against this checking effect.

In the attainment of this object, I combine with supports for a shoe with an attached heelsection and for a second unattached heel-section, as a jack and nailing die respectively, which supports are movable relatively to press the sections together, means contacting with the rear of the attached section for preventing its displacement by the applied pressure. The retaining or displacement-preventing means may be presented in the proper relation to the attached or basesection by being carried upon such means as a band-clamp, by which the shoe is located for the operation of attaching the tread-section. Said retaining means is preferably in the form of a rod, furnishing a brace contacting at one end with the attached heel-section and at the other end with a relatively fixed member, for example with the machine-frame. In different vertical positions of the band-clamp, the retaining member maintains its proper engaging relation to the attached heel-section and finds an opposite point upon the frame, with which it may contact to provide a displacement-resisting abutment. Since the heels operated upon will vary in their pitch or vertical contour, the point at which the retaining device engages a heel, with respect to its distance from the fixed member or frame, is made variable, as by altering its length. Further, because the shoe-locating member or band-clamp may require to be adjusted :over the nailing die from front to rear of the machine, I provide for this movement without effect upon the retaining member by making the latter variable in position with respect to the locating member. The retaining device or brace may be yieldable upon the locating member or band-clamp and be urged against the frame by a spring. Consequently, as said locating member is adjusted, it may move along the retaining device without effect upon it.

In the accompanying drawing,

Fig. 1 is a side elevation of that portion of a heel-attaching machine with which the present invention deals;

Fig. 2, a top plan View of the work-retaining device; and

Fig. 3, a similar view of means for supporting said device. a

My invention is herein disclosed as a portion of the well known McKay Automatic Heel Loading and Attaching Machine, Model B, the general structure of which is described in Letters Patent of the United States No. 1,157,688, Glidden, October 26, 1915. In connection with this machine, the invention is utilized for the attachment of a tread-section T of a heel to a base-section B, which by a previous operation has been secured to the heel-seat of a shoe S. As is customary, the upper and lower faces of each of these sections, especially the base, diverge from front to rear. The section T is supported upon a die Ill, through passages in which reciprocate drivers l2 to insert nails which they carry through the lower heelsection into the upper section. A jack l4 presents the shoe S, with its base-section, to the tread-section upon the die. The jack is movable downwardly to place preliminary pressure upon the work, while the die is oppositely movable to apply final clamping pressure. The shoe is located for the nailing operation by a band-clamp, the

band IE of which receives the counter-portion of said shoe. This band is mounted upon a carrier l8 variable as to angle upon a hanger 2!], which may be differently positioned vertically upon a horizontally movable slide 22. Various adjustments are provided whereby the band may correctly locate the shoe, one of these being furnished by movement of the slide 22 in a direction from front to rear of the machine, this being produced by the rotation of a hand-wheel 24.

Considering, now, the elements more closely concerned with the present invention, there is secured to the rear of the carrier l8 a bracket 26, which has through its end a substantially vertical opening to receive a supporting stem 28.

'"The end of the bracket is divided, and the opbetween the heel-section B and some such relatively fixed member as the frame F of the heeling machine. The section 40 of the rod is splined to move longitudinally through the bracket-arm 36 without rotation, and has .at its forward extremity a concave member or rest 43, arranged for contact with the rear of the heel-section B. The rod-section 40 has an axial bore threaded to receive the threaded end of the rod-section 42. This section 42 has upon it, between the bracket-arms, a finger-piece 44, and a cylindrical extension 46 of the section is guided in the opening through the arm 38. By turning the section 42 by its finger-piece, the threaded connection to the companion section will cause the length of the rod, as a whole, to be altered, this adjustment being held against accidental change by a friction device 48, carried by the arm 38 of the bracket 34 and engaging the rod-extension 46. A relatively light expansion-spring 50 surrounds the extension, between the arm 38 and a rounded head 52 upon said extension, acting always to hold the head against a vertical surface 54 of the frame. The distance between said head and the adjacent surface of the end of the hub upon the finger-piece 44 is sufficient to allow for the movement of the bracket-arm 381 along the rod for the extreme forward adjustment of the bandclamp,

As to the use of this heel-retaining brace, it is to be noted that the tread-section T of the heel to be nailed to the base B upon the shoe S is definitely positioned .by its necessary relation to the driver-passages in the die ID, but that the base-section will require to be varied in position from front to rear of the machine as it differs in its horizontal dimensions, to provide for a change in the pitch of the heel. The treadsection being in place over the die, the operator applies the shoe, with the previously attached base-section, upon the raised jack [4, and swings these down to operating position over the die. The band-clamp falls in the usual manner, so it receives and locates the shoe and base in the proper relation to the tread-section. The descent of the band-clamp places the rear of the base directly in front of the contact member 43 of the rod 40, 42 and, if the character of the work has not been altered since the preceding operation, in contact therewith. In this movement of the band-clamp, the head 52 of the rod will travel along the vertical surface 54 of the frame. If there has been a change in the dimensions of the base, the operator will turn the rod-section 42 by the finger-piece 44 to vary the total length of the rod, and thus suitably advance or retract the contact member, so the rear of the base bears against it when said base is in the proper relation to the tread-section upon the die. The position of the base, and therefore of the shoe, which requires this adjustment may render it desirable to correspondingly adjust the band-clamp by the hand-wheel 24, so it firmly embraces the counter-portion of the shoe. As the slide 22 and consequently the hanger 20 and carrier l8 are moved from front to rear of the machine, this is effected without disturbing the base-retaining device. This is true, because, if the bracket 34 depending from the carrier i8 is shifted to the right (Fig. l) by the adjustment, it moves along the rod 40, 42, merely compressing the spring 50. If the adjustment is in the opposite direction, the spring expands, Whatever position the band-clamp may assume, the spring always holds the head 52 of the rod against the surface 54 of the frame,

- and said rod serves as a brace, which, by the engagement of the member 43, retains the base positively against rearward displacement when pressure is applied to the work by relative movement of the jack I4 and the die Hi. This tendency to displacement is largely caused by the ,divergence'of'the opposite faces of the sections.

As a result of this, separation between the heelsections and their component lifts by the pressure-stresses set up during the clamping of the work is effectively prevented, with little need for attention on the part of the operator. If, because of the character of the base, vertical adjustment of the retaining device is desirable, it may be obtained by clamping the supporting stem 28 at different heights in the carrier I 8, the screw 30 being loosened for this purpose and again tightened.

Having described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a heel-attaching machine, a support for a shoe carrying an attached heel-section, a support for an unattached heel-section, the supports being movable relatively to press the heel-sections together, means contacting with the rear of the attached section for preventing its displacement upon the application of pressure, and means for inserting fastenings through the unattached heel-section into the attached heel-section.

2. In a heel-attaching machine, a support for a shoe carrying an attached heel-section, a support for an unattached heel-section, the upper and lower faces of the sections diverging from each other, the supports being movable relatively to press said sections together, shoe-locating means, and means carried by the locating means and contacting with the attached section for preventing its displacement in the direction of divergence of the heel-faces upon the application of pressure.

3. In a heel-attaching machine, a support for a shoe carrying an attached heel-section, a support for an unattached heel-section, the supports being movable relatively to press the heel-sections together, shoe-locating means, means carried by the locating means and contacting with the attached section for preventing its rearward displacement upon the application of pressure, and means arranged to vary the point at which the displacement-preventing means contacts with the attached section.

4. In a heel-attaching machine, a frame, a shoe-support and a heel-support carried by the frame, means for moving the supports relatively to press the shoe and heel together, shoe-locating means movable in such relative movement, and a work-retaining device carried by the 10- cating means and contacting with the frame.

5. In a heel-attaching machine, a frame, a shoe-support and a heel-support carried by the frame, means for moving the supports relatively to press the shoe and heel together, shoe-locating means movable in such relative movement, and a retaining device carried by and variable in position upon the locating means and contacting with the frame.

6. In a heel-attaching machine, a support for a shoe carrying an attached heel-section, a support for an unattached heel-section, means for moving the supports relatively to press the heelsections together, a member fixed relatively to the shoe-support, a brace interposed between the attached section and the fixed member, and means for driving nails through the unattached heel-section into the attached heel-section.

7. In a heel-attaching machine, a support for a shoe carrying an attached heel-section, a support for an unattached heel-section, means for moving the supports relatively to press the heel-sections together, a member fixed relatively to the shoe-support, a brace interposed between the attached section and the fixed member, means arranged to vary the length of the brace, and means for driving nails through the unattached heel-section into the attached heel-section.

8. In a heel-attaching machine, a jack for supporting a shoe with an attached heel-section, a nailing die supporting a second heel-section, a band-clamp to receive the supported shoe, and a retaining device carried by the band-clamp at the rear of the attached heel-section for contact therewith.

9. In a heel-attaching machine, a frame, a jack for supporting a shoe with an attached heelsection and a nailing die supporting a second heel-section, said jack and die being movable upon a frame, a band-clamp receiving the supported shoe and being movable upon the frame, and a brace carried by the band-clamp and contacting with the attached heel-section and with the frame.

10. In a heel-attaching machine, a frame, a jack for supporting a shoe with an attached heelsection and a nailing die supporting a second heel-section, said jack and die being movable upon the frame, a band-clamp receiving the supported shoe and being movable upon the frame, a brace carried by the band-clamp and contacting with the attached heel-section and with the frame, and means arranged to vary the effective length of the brace.

11. In a heel-attaching machine, means for supporting a shoe and heel, movable locating means for the shoe, a member fixed relatively to the locating means, and a brace yieldably mounted upon the locating means and contacting with the heel and with the relatively fixed member.

12. In a heel-attaching machine, means for supporting a shoe and heel, movable locating means for the shoe, a member fixed relatively to the locating means, a brace yieldably mounted upon the locating means and contacting with the heel and with the relatively fixed member, and means arranged to vary the length of the brace.

13. In a heel-attaching machine, a frame, a jack for supporting a shoe with an attached heel-section and a nailing die supporting a second heel-section, said jack and die being movable upon the frame, a band-clamp receiving the supported shoe and being movable upon the frame, a bracket depending from the bandclamp, and a rod movable in the bracket and contacting at one end with the attached section and at the other end with the frame.

14. In a heel-attaching machine, a frame, a jack for supporting a shoe with an attached heel-section and a nailing die supporting a second heel-section, said jack and die being movable upon the frame, a band-clamp receiving the supported shoe and being movable upon the frame, a bracket depending from the bandclamp, and a rod movable in the bracket and contacting at one end with the attached section and at the other end with the frame, said rod being formed in relatively movable sections.

15. In a heel-attaching machine, a frame, a jack for supporting a shoe with an attached heelsection and a nailing die supporting a second heel-section, said jack and die being movable upon the frame, a band-clamp receiving the supported shoe and being movable upon the frame, a bracket depending from the band-clamp, a rod movable in the bracket and contacting at one end with the attached section and at the other end with the frame, and a spring urging the rod toward the frame.

WILLIS R. GOODWIN. 

